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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1245360Generated: October 25, 2026

Diisopropylethylamine → ethyl (2S)-2-(2-{4-[(2S)-2-hydroxy-3-(2-methylbenzothiazol-5-yloxy)propyl]piperazinyl}acetylamino)-2-(4-fluorophenyl)acetate

https://huagongshe.com/reaction/1245360

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant(2S)-1-(2-methylbenzothiazol-5-yloxy)-3-piperazinylpropan-2-olHCID 58595334—
ReactantEthyl (2S)-2-(2-chloroacetylamino)-2-(4-fluorophenyl)acetateHCID 58719661—
SolventEthanolHCID 702—
Productethyl (2S)-2-(2-{4-[(2S)-2-hydroxy-3-(2-methylbenzothiazol-5-yloxy)propyl]piperazinyl}acetylamino)-2-(4-fluorophenyl)acetateHCID 58719662—

Reaction Steps

Ethyl (2S)-2-(2-chloroacetylamino)-2-(4-fluorophenyl)acetate (400 mg, 1.46 mmol), (2S)-3-(2-methylbenzothiazol-5-yloxy)-1-piperazinylpropan-2-ol (560 mg, 1.46 mmol), and 1.26 ml diisopropylethylamine (7.3 mmol) was refluxed in ethanol for 24 hours. Solvent was removed under reduced pressure, and the residue purified by Prep TLC, to provide ethyl (2S)-2-(2-{4-[(2S)-2-hydroxy-3-(2-methylbenzothiazol -5-yloxy)propyl]piperazinyl}acetylamino)-2-(4-fluorophenyl)acetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07125876B2
Source datasetuspto-grants-2006_10
ORD IDord-ab6fdded6f034af3954218d3f94ff2c6
Source noteuspto-grants-2006_10